// Acerit - run for 6 months from 1st April - 31st September 06

var ad_images = Array('ad_pkf.jpg','ad_orange.gif','ad_acerit.gif','ad_studio2online.gif');
var ad_links = Array('http://www.pkf.co.uk/web/pkf800.nsf/virtualPages/homePage?OpenDocument','http://www.scancom.co.uk/customer/home.php','http://www.acerit.com','http://www.studio2online.co.uk');
var current_ad = Math.round((Math.random()  * 2) % ad_images.length);

function change_ad()
{
	var ad_image = document.getElementById('ad_image');
	var ad_link = document.getElementById('ad_link');

	current_ad = (current_ad+1) % ad_images.length;
		
	if( ad_image!=null && ad_link!=null )
	{
		ad_image.src = '/Images/' + ad_images[current_ad];
		ad_link.href = ad_links[current_ad];
	}

	window.setTimeout(change_ad, (11*1000) );

	return;
}